Nonlinear Earthquake Response of Tiedback Retaining Walls

系式挡土墙的非线性地震响应

• 批准号: 8516447
• 负责人: Paul Christiano
• 金额: $ 9.7万
• 依托单位: Carnegie-Mellon University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1986
• 资助国家: 美国
• 起止时间: 1986-04-15 至 1987-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8516447&HistoricalAwards=false
• 关键词: Nonlinear; Earthquake; Response; Tiedback; Retaining

The objective of this research is to investigate, by means of analytical models, the nonlinear response of tied-back flexible retaining walls, during seismic events with a view towards developing rationale methods of design. To represent different practical situations, several anchoring conditions for the tie-rods are considered, ranging from a fixed condition to anchors that are allowed to displace within the soil backfill. The research will improve the understanding of the mechanisms, including failure, by which tied-back walls deform under dynamic loading. This will identify the conditions under which it may be desirable to design the wall so that it can experience permanent displacements, thereby resulting in ground motion that is less than the peak ground motion.

本研究的目的是调查，通过 分析模型，回拉柔性梁的非线性响应， 挡土墙，在地震事件期间， 合理的设计方法。 代表不同的实际 在这种情况下，拉杆的几个锚固条件是 考虑，范围从一个固定的条件，以锚，允许 在回填土中移动。 该研究将提高 了解回接的机制，包括故障， 墙在动态载荷下变形。 这将确定条件 在这种情况下，可能希望将壁设计成使得它可以 经历永久位移，从而导致地面运动 比地面运动峰值要小